Data export missing data

I have exported data with synchronisation to my google drive.. but half of the data is missing and i deleted the origional because of your 'over quota'.

is it solvable or is my data just gone!!!!!!!!!!!!!!!!!!

To clarify ,did you delete your submissions?

I have recalculated your total submissions and you account is not over the quota anymore.

May we know if you have used the DATA export feature?

https://www.jotform.com/help/374-How-to-Export-All-of-Your-Data-at-Once